{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199835",
    "entityType": "User",
    "nonce": "0x59d4272e027b63a99e2b25f8f860819c475ca4741181205fca52dbc4623fee5f",
    "signature": "0x6a1e9d4030224b0dbfd1c47861f352eb94972c6d6539526965eda3280ac89d37296cc51bfdbb2e7cb9b3d7f2d3d140ae6cd3c6b1c5674af2aa7caa84ec0eb1e01b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}